EP 1048870 A2 20001102 - Hydrostatic coupling
Title (en)
Hydrostatic coupling
Title (de)
Hydrostatische Kupplung
Title (fr)
Accouplement hydrostatique
Publication
Application
Priority
JP 11791299 A 19990426
Abstract (en)
A plunger is accommodated in each of a plurality of plunger chambers formed axially in a rotor, with the plunger being displaced by rotation of a cam face associated with a housing. A first one way valve for intake is incorporated in the head of each plunger and a second one way valve for discharge is disposed within in a discharge hole leading to the plunger chambers. The intake stroke of the plunger caused by rotation of the cam opens the first one way valve to suck oil from a low pressure chamber into the plunger chamber. The discharge stroke of the plunger opens the second one way valve to allow the discharged oil to flow through the orifice into the low pressure chamber, whereby a torque corresponding to the relative rotational-speed difference is transmitted from the housing side to the rotor side. <IMAGE>
IPC 1-7
IPC 8 full level
B60K 17/34 (2006.01); F16D 31/02 (2006.01)
CPC (source: EP US)
F16D 31/02 (2013.01 - EP US)
Citation (applicant)
- JP H10164628 A 19980619 - IBM
- US 5706658 A 19980113 - KATO TADAHIKO [JP], et al
- US 5983635 A 19991116 - KATO TADAHIKO [JP], et al
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1048870 A2 20001102; EP 1048870 A3 20030129; JP 2000310252 A 20001107; JP 3699858 B2 20050928; US 6257387 B1 20010710
DOCDB simple family (application)
EP 00108386 A 20000417; JP 11791299 A 19990426; US 55684100 A 20000421